Butter Knife 配置和使用及插件

apply plugin: 'com.android.application'
<strong>apply plugin: 'com.neenbedankt.android-apt'
apply plugin: 'com.jakewharton.butterknife'</strong>
android {
    compileSdkVersion 24
    buildToolsVersion "24.0.3"
    aaptOptions {
        cruncherEnabled = false
        useNewCruncher = false
    }
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:24.2.1'
    testCompile 'junit:junit:4.12'
    <strong>compile 'com.jakewharton:butterknife:8.4.0'
    apt 'com.jakewharton:butterknife-compiler:8.4.0'</strong>
}

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.0'
        classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0'
        classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {
    repositories {
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

class ExampleActivity extends Activity {
 @BindView(R.id.title) TextView title
  @BindView(R.id.subtitle) TextView subtitle;
  @BindView(R.id.footer) TextView footer;
  @Override public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.simple_activity);
    ButterKnife.bind(this);
    // TODO Use fields...
  }
}

<span style="font-size:12px;">@OnClick(R.id.submit)
public void submit(View view) {
  // TODO submit data to server...
}</span>
@OnClick(R.id.submit)
public void submit() {
  // TODO submit data to server...

static class ViewHolder {
    @BindView(R.id.title) TextView name;
    @BindView(R.id.job_title) TextView jobTitle;
    public ViewHolder(View view) {
      ButterKnife.bind(this, view);
    }
  }

class ExampleActivity extends Activity {
@BindString(R.string.title) String title;
@BindDrawable(R.drawable.graphic) Drawable graphic;
@BindColor(R.color.red) int red; // int or ColorStateList field
@BindDimen(R.dimen.spacer) Float spacer; // int (for pixel size) or float (for exact value) field
  // ...
}
}

-keep class butterknife.** { *; }  
-dontwarn butterknife.internal.**  
-keep class **$$ViewBinder { *; }  
-keepclasseswithmembernames class * {  
    @butterknife.* <fields>;  
}  
-keepclasseswithmembernames class * {  
    @butterknife.* <methods>;  
}